Google Tag Manager Nonce

view.cshtml

<script id="gtmScript" data-nonce="@Html.CspScriptNonceValue()">
(function (w, d, s, l, i) {
w[l] = w[l] || []; w[l].push({
'gtm.start':
new Date().getTime(), event: 'gtm.js'
}); var f = d.getElementsByTagName(s)[0],
j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : ''; j.async = true; j.src =
'https://www.googletagmanager.com/gtm.js?id=' + i + dl; var n = d.querySelector('[nonce]');
n && j.setAttribute('nonce', n.nonce || n.getAttribute('nonce')); f.parentNode.insertBefore(j, f);
})(window, document, 'script', 'dataLayer', '###-#######');</script>
<!-- End Google Tag Manager -->